What is the current water temperature in Holyhead?

Q: What is the current water temperature in Holyhead?

As of now, in Holyhead, the water temperature is 16.64°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

United Kingdom > Holyhead

Water temperature in Holyhead

Detailed information about the current water temperature in Holyhead. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.

62.0

°F

August 11, 03:19

Trend:

increasing

Yesterday:

61.8°F

Tomorrow:

62.4°F

Sunrise:

05:51

Sunset:

20:55

Day Length:

15 h. 4 min.

Holyhead in August

Minimum:

47.0°F

Average:

48.8°F

Maximum:

50.6°F

Sea water temperature in Holyhead today

As of now, in Holyhead, the water temperature is 62.0°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 1.6°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 61.8°F on 2022, while the historical minimum was 59.0°F on 2016.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 62.6°F, with minimum temperature starting at 62.4°F, while the maximum might reach 62.8°F.

Daily water temperature in Holyhead

Date	Current Year actual* / forecast**	last year	10 years average
Jul 28	61.5°F	60.2°F	59.8°F
Jul 29	61.5°F	61.3°F	59.9°F
Jul 30	61.2°F	61.1°F	60.0°F
Jul 31	61.7°F	60.9°F	60.0°F
Aug 1	61.4°F	59.8°F	59.9°F
Aug 2	61.5°F	60.0°F	60.1°F
Aug 3	61.5°F	60.3°F	60.2°F
Aug 4	61.6°F	61.0°F	60.2°F
Aug 5	61.3°F	61.4°F	60.3°F
Aug 6	61.7°F	60.8°F	60.5°F
Aug 7	61.4°F	60.8°F	60.3°F
Aug 8	61.7°F	61.1°F	60.4°F
Aug 9	62.2°F	61.1°F	60.4°F
Aug 10	61.8°F	60.9°F	60.3°F
Aug 11	62.0°F	61.0°F	60.4°F
Aug 12	62.4°F	62.1°F	60.8°F
Aug 13	62.4°F	62.2°F	60.9°F
Aug 14	62.6°F	62.4°F	61.0°F
Aug 15	62.5°F	62.6°F	61.0°F
Aug 16	62.7°F	62.7°F	61.1°F
Aug 17	62.8°F	62.6°F	61.2°F
Aug 18	62.6°F	62.4°F	61.1°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Holyhead by month

In an average year, Holyhead offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Holyhead was recorded on August 29, 2025, reaching a 63.3°F. While the coldest temperature occurred on March 9, 2018, dipping to 43.0°F. The average readings by season are 48.5°F in Winter, 48.7°F in Spring, 58.3°F in Summer, and 57.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Caernarfon	65.0°F	19mi
Bangor	63.0°F	21mi
Conwy	65.0°F	33mi
Douglas	61.4°F	59mi
Aberystwyth	67.2°F	66mi

* current water temperature in this city

** straight line distance from Holyhead